| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent an inner plug from being detached from a lid body by stably holding the inner plug in the lid body through the engagement of a projection for locking the inner plug provided on an inner surface of a skirt part of the lid body with a thin-walled peripheral edge part of the inner plug in a stage before capping. SOLUTION: A container lid comprises a lid body 1 and an inner plug 2 formed of a synthetic resin, and is provided with an over-cap 3 as necessary. In the lid body 1, a thread 10 to be screwed with a thread 51 formed on an outer surface of a container mouth part 50 is formed on an inner surface of a skirt part 6 suspended from a top plate part 5, and a projection 11 for locking an inner plug is formed above the thread 10. A projection 8 for adjusting the shape to direct a thin-walled peripheral edge part 40 of the inner plug 2 downward when the lid body 1 is screwed to the container mouth part 50, is formed on an inner surface of a horizontal flange part 7 formed on the top plate part 5, an annular projection 9 for holding the inner plug is formed inside the projection 8, and the inner plug 2 is held by the projections 8, 9. |
